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 Natural Gas Line Question
#942069
04/24/09 03:47 AM
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Joined: Apr 2000
Posts: 4,859
OP
Roll Me Over
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In the pic below, anyone know what the circular thing with a little vent on the bottom that's attached to the unmetered side above the shut-off valve is? The shut-off valve is highlighted in a circle. ![[Linked Image]](http://www.pge.com/includes/images/shared/edusafety/gaselectric/turngasoff/gasserviceshutoff.jpg)
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Re: Natural Gas Line Question
[Re: code33]
#942070
04/24/09 05:05 AM
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Joined: Jul 2002
Posts: 1,674
Body Damage is Cool
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If it was in-line I'd say it was a pressure regulator, but I really don't know with one end open like that.
We're almost all LP gas in this neck of the woods, hence my having to convert all the gas appliances I put in.
Maybe something akin to a pressure relief valve on a water heater? Seems like you don't want it venting to atmosphere though...
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Re: Natural Gas Line Question
[Re: stock87]
#942071
04/24/09 05:21 AM
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Joined: Oct 2004
Posts: 6,332
Trail Leader
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Comes in at 50 psi, goes out at 5 psi. Gotta have something to compare it to...
1990 Montero RS (In pieces... for now)
KG6VNX
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Re: Natural Gas Line Question
[Re: 52degrees]
#942072
04/24/09 07:02 AM
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Joined: Dec 2004
Posts: 400
Mudrunner
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Service regulater... dunno about the US of A, but here our gas comes in low, med or high pressure, depending where you live (old areas are low, all new stuff is high pressure)and has varying pressures in the main, from 3-20 KpA (KiloPascal).Most appliances run on 1 KpA or less, so flow must be regulated...first at the meter to 1.1 KpA, then again at the appliance to 1.0KpA. <img src="/forums/images/graemlins/kewl.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" /> 22 Years in the Plumbing and Gas business this year!
Excuses are for losers.
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Re: Natural Gas Line Question
[Re: TheBigDog]
#942073
04/24/09 07:15 AM
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Joined: Oct 2004
Posts: 6,332
Trail Leader
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The open "vent" port allows it to maintain pressure relative to current atmospheric conditions. Keeps the flame fronts nice and even in varying weather.
1990 Montero RS (In pieces... for now)
KG6VNX
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Re: Natural Gas Line Question
[Re: code33]
#942074
04/24/09 06:33 PM
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Joined: Apr 2003
Posts: 1,393
Body Damage is Cool
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... and it CAN and sometimes will, vent to atmosphere at times! Don't let it freak you out if your outside on a hot day and you hear it go, or smell gas for a moment.
-Dave D
Reservoir of Useless Knowledge
"But... If I kill all the golfers, they'll lock me up, and throw away the key..."
-Bill Murray
'84&change Monty MPI Turbo, choptop, f&r lsd, swapped in AT- All the goodies!
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Re: Natural Gas Line Question
[Re: code33]
#942075
04/25/09 12:36 AM
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Joined: Dec 2001
Posts: 11,727
Web Wheeler
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In the pic below, anyone know what the circular thing with a little vent on the bottom that's attached to the unmetered side above the shut-off valve is? The shut-off valve is highlighted in a circle. Why do you need to know ?
98 Montero with cold weather package
96 Toyota Land Cruiser, fully locked Mall Machine :-)
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Re: Natural Gas Line Question
[Re: LRJ4x4]
#942076
05/06/09 01:10 AM
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Joined: Nov 2007
Posts: 633
Rock Warrior
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Looks like a a ball valve to me. (for shut off purposes)
If what you are asking about is high lighted. The other two items are regulators.
01' TJ Wangler, 6" Ruff Country X Series, 35" x 12.5" Mickey Thompsons On 15 x 10" rims w/ simi Bead Lock, Matching Warn Bumpers, 9500xi Warn Wench, Tom Woods Drive Shaft And SYE, And A K+N Cool Air Intake. Still Improving
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